Perhaps you should try some spelling variations:
"using rate code snippets" » "using waste code snippets", "using data code snippets", "using raw code snippets", "using rate core snippets", "using rate code slippers"
"trinh cac phi snippets" » "trinh cau phi snippets", "trinh chat phi snippets", "trinh chao phi snippets", "trinh cac thi snippets", "trinh cac khi snippets", "trinh tac phi snippets", "trinh cac phi slippers"
"locating bug code snippets" » "locating bug core snippets", "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("using rate code snippets") or ("trinh cac phi snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using rate code snippets") OR ("trinh cac phi snippets"))) OR ("locating bug code snippets")).
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